Why some strange things happen in our life?

Also (mathematically speaking), although the chance of any one particular unlikely event is unlikely (because it’s unlikely), there are a very large number of unlikely events that could happen.  It’s this huge number of possible events that forces the probabilities to favor the “unusual happenstance camp”.  Feynman summed it up pretty well:“You know, the most amazing thing happened to me tonight. I was coming here, on the way to the lecture, and I came in through the parking lot. And you won’t believe what happened. I saw a car with the license plate ARW 357. Can you imagine? Of all the millions of license plates in the state, what was the chance that I would see that particular one tonight? Amazing!”